Abstract
Apple pectin, Malus pumila is used as an alternative flocculant in the water treatment of groundwater for removal of heavy metal (As, Cd, Cr, Fe and Pb) and turbidity reduction. There is 97.71% turbidity reduction achieved by using apple pectin with the optimum dosage of magnesium chloride, 15 mg/L at pH 10. From the heavy metal analysis, the results have shown that before treated with pectin, it has been found that all selected elements, As, Cd, Cr, Fe and Pb with concentration of 0.136 mg/L, 0.076 mg/L, 0.089 mg/L, 1.374 mg/L and 0.099 mg/L respectively exceed the standard. After the treatment conducted with apple pectin, only the concentration of Fe (0.107 mg/L) is accepted within the standard limit.
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